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DTR. LI-24(ENG)
CONTENTS
1. INTRODUCTION .............................................................................................................................. 2
2. APPLICATIONS AND MAIN FEATURES ........................................................................................ 2
3. CONSIGNMENT CONTENTS .......................................................................................................... 2
4. CONSTRUCTION AND MEASUREMENT PRINCIPLES ................................................................. 2
4.1. Electronic System – block diagram...................................................................................................... 3
5. USE OF THE LI-24 TRANSMITTERS IN DANGER ZONES ............................................................ 3
5.1. List of norms. ...................................................................................................................................... 3
5.2. LI-24 transmitters identification symbols. ............................................................................................. 3
5.3. Permitted intrinsic-safety parameters .................................................................................................. 4
5.3.1.Permitted sensors supply parameters (to 1, 2, 3, 4, 5 terminal sensors connection) ............... 4
5.3.2. Permitted input parameters (to <DC>, <DC> terminals current loop) ..................................... 4
5.4. Supply examples ................................................................................................................................ 4
5.4.1. - Power supply with linear characteristics ............................................................................. 4
5.4.2. – Power supply with the trapezoidal characteristics ............................................................. 4
5.4.3. - Power supply with the rectangular characteristics ............................................................. 5
5.5. Assembly recommendations ............................................................................................................... 5
5.5.1. General recommendations...................................................................................................... 5
5.5.2.Special conditions for safe use according to FTZU 08 and ATEX 0160X Certificates........... 5
5.5.3. LI-24 connecting at danger area. ............................................................................................ 6
6. TECHNICAL PARAMETERS. .......................................................................................................... 6
6.1. Electrical parameters: ......................................................................................................................... 6
6.2. Metrological parameters: ..................................................................................................................... 7
6.2.1. Input data, accuracy. ............................................................................................................... 7
6.3. Input with 2 sensors: .......................................................................................................................... 8
6.4. Normal usage conditions:.................................................................................................................... 9
7. SENSORS CONNECTION OPTIONS TO LI-24 TRANSMITTER. .................................................. 10
8. LI-24 TRANSMITTER CONFIGURATION ...................................................................................... 11
9. SAFETY CONDITIONS. ................................................................................................................. 11
10. STORAGE AND TRANSPORT. ..................................................................................................... 11
10.1. Storage. .......................................................................................................................................... 11
10.2. Transport. ....................................................................................................................................... 11
11. WARRANTY. ................................................................................................................................. 11
12. FIGURES ....................................................................................................................................... 12
Fig.1. LI-24 transmitter – block diagram. .................................................................................................... 3
Fig.2. The supplying principle with a source of linear characteristics........................................................... 4
Fig.3. The supplying principle with a source of trapezoidal characteristics. ................................................. 4
Fig.4 The supplying principle with a source of rectangular characteristics. .................................................. 5
Fig.5. Connecting transmitter circuit – sensors connecting according to p.7................................................ 6
Fig.6. Supply voltage in load resistance (Ro) function for LI-24 transmitter. Safe working area (grid)
upper colour area............................................................................................................................. 6
Fig.7. Sensors connection options to LI-24 transmitter. ........................................................................... 10
Fig.8. Circuit LI-24 transmitter to configuration with PC computer and Hart-RS converter ........................ 11
Fig.9. Smart temperature transmitter type LI-24, dimensions, description. ................................................ 12